Tvheadend

things were working great in tvheadend, then PBS moved to a new frequency. i have hdhomerun, in the windows program for the tuner it shows the Pbs programs correctly. but once i rescanned in tvheadend i had no epg for the new channels. i did a fresh install on ubuntu 18.04 in lxd from github where the wizard grabbed hdhomerun and the pbs channels perfectly yet still no guide.

when i try epgdump i get an error:

root@tvheadend2:~/tvheadend/tvheadend# ./support/epgdump ~/.hts/tvheadend/epgdb.v3
__iter__()
Traceback (most recent call last):
  File "./support/epgdump", line 37, in <module>
    for msg in htsmsg.deserialize(fp, True):
  File "./support/../lib/py/tvh/htsmsg.py", line 239, in next
    raise Exception('failed to read from fp')
Exception: failed to read from fp
root@tvheadend2:~/tvheadend/tvheadend#

when i goto the webpage for xmltv lineup i get more errors.

XML Parsing Error: not well-formed
Location: http://192.168.1.199:9981/xmltv/channels
Line Number 810, Column 40:  <title lang="eng">KDOC-DT5 Programaci￿
---------------------------------------^

when viewing the xml in notepad++ i see that firefox is choking on unicode characters. the PbsHD is listed in the XML file but its channel ID has no programme's listed.

how can i debug tvheadend to kick out detailed info on the ota epg scan about the pbs channel guide? PBS is on 677.028

Jul  1 19:44:57 tvheadend2 tvheadend[46526]: tvhdhomerun: tuner_vstatus (0)
Jul  1 19:45:31 tvheadend2 tvheadend[46526]: subscription: 00CC: "epggrab" unsubscribing
Jul  1 19:45:32 tvheadend2 tvheadend[46526]: mpegts: 677.028MHz in ATSC-T Network - tuning on HDHomeRun ATSC-T Tuner #3 (192.168.1.187)
Jul  1 19:45:32 tvheadend2 tvheadend[46526]: tvhdhomerun: tuning to auto:677028615
Jul  1 19:45:32 tvheadend2 tvheadend[46526]: subscription: 00D0: "epggrab" subscribing to mux "677.028MHz", weight: 4, adapter: "HDHomeRun ATSC-T Tuner #3 (192.168.1.187)", network: "ATSC-T Network", servic$
Jul  1 19:45:42 tvheadend2 tvheadend[46526]: subscription: 00CE: "epggrab" unsubscribing
Jul  1 19:45:43 tvheadend2 tvheadend[46526]: mpegts: 629.028MHz in ATSC-T Network - tuning on HDHomeRun ATSC-T Tuner #2 (192.168.1.187)
Jul  1 19:45:43 tvheadend2 tvheadend[46526]: tvhdhomerun: tuning to auto:629028615
Jul  1 19:45:43 tvheadend2 tvheadend[46526]: subscription: 00D2: "epggrab" subscribing to mux "629.028MHz", weight: 4, adapter: "HDHomeRun ATSC-T Tuner #2 (192.168.1.187)", network: "ATSC-T Network", servic$
Jul  1 19:46:17 tvheadend2 tvheadend[46526]: subscription: 00D0: "epggrab" unsubscribing
Jul  1 19:46:18 tvheadend2 tvheadend[46526]: mpegts: 177.028MHz in ATSC-T Network - tuning on HDHomeRun ATSC-T Tuner #3 (192.168.1.187)